BL 40.6 cm/52 calibre Mk I gun

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BL 40.6 cm/52 calibre Mk I gun
Hestia class forecastle.png
A and B mounts on HMS Hestia (FBB-58), 2052
TypeNaval gun
Place of originIllusia and Neverendia
Service history
In service2049–present
Used byIllusia and Neverendia
Production history
Designed2048
Produced2049–present
Specifications
Length22.25 m (73 ft 0 in)
Barrel length21.112 m (69 ft 3.2 in) (52 calibres)

ShellAPCBC, HE
Calibre406 mm (16.0 in)
Recoil1.5 m (59 in)
Rate of fire2 rounds per minute
Muzzle velocity
  • APCBC (Mk XI): 760 m/s (2,500 ft/s)
  • HE (Mk XXVI): 785 m/s (2,580 ft/s)
Effective firing range32,150 m (35,160 yd) at 31° elevation
Maximum firing range35,275 m (38,577 yd)

The BL 40.6 cm/52 caliber Mk I gun is an Illuverendian 406 mm (16.0 in) naval gun that serves as the main battery armament of multiple Royal Illuverendian Navy battleships.